I love the way he asks the JW viewer to think about what scripture they would use to explain the meaning of a generation, pauses and then comes up with a scripture that he thinks applies.
What he was really saying was - 'now that we, the GB, have come up with a new, complicated idea to explain that this generation doesn't mean anything close the common language meaning of the term, we need to twist other scriptures to support the idea. Help us out brothers and think of other scriptures that you think we might be able to use. We gave you the idea now you support it biblically.'